Beyond Diatomic Molecules Polyatomic Molecule Vibrational Dynamics

4 Beyond Diatomic Molecules Polyatomic Molecule Vibrational Dynamics 

The unavailability of an RKR-like inversion (hence the impossiblity of obtaining the potential energy surface, V(Q), and exact vibrational eigenfunctions directly from experimental data) makes it convenient to use products of simple harmonic or Morse-oscillator basis functions as vibrational basis states 

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